Behind Akiko Yagumi's pretty exterior is a cyborg who works as a special agent for the Japanese government. When strange things happen at a posh school, Akiko is brought in as a teacher. As it turns out, the corector administers drugs to the students through which they get into a kind of sexual intoxication. The resulting energy is fed to the school president, an old man who is barely able to move, to give him new life energy. The Korean principal receives help from the three Aisawa sisters. When Akiko is also attacked, she fights back...